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Strain transfer of surface-bonded fiber Bragg grating sensors for airship envelope structural health monitoring

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Abstract

This paper deals with an improved bonding approach of surface-bonded fiber Bragg grating (FBG) sensors for airship envelope structural health monitoring (SHM) under the strain transfer theory. A theoretical formula is derived from the proposed model to predict the strain transfer relationship between the airship envelope and fiber core. Then theoretical predictions are validated by numerical analysis using the finite element method (FEM). Finally, on the basis of the theoretical approach and numerical validation, parameters that influence the strain transfer rate from the airship envelope to fiber core and the ratio of effective sensing length are analyzed, and some meaningful conclusions are provided.

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Authors and Affiliations

  1. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai, 200240, China

    Hai-tao Zhao, Quan-bao Wang, Ye Qiu, Ji-an Chen, Yue-ying Wang & Zhen-min Fan

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  1. Hai-tao Zhao
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  2. Quan-bao Wang
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  3. Ye Qiu
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  4. Ji-an Chen
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  5. Yue-ying Wang
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  6. Zhen-min Fan
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Corresponding author

Correspondence to Ye Qiu.

Additional information

Project (No. 2011AA7052011) supported by the National High-Tech R&D (863) Program of China

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Zhao, Ht., Wang, Qb., Qiu, Y. et al. Strain transfer of surface-bonded fiber Bragg grating sensors for airship envelope structural health monitoring. J. Zhejiang Univ. Sci. A 13, 538–545 (2012). https://doi.org/10.1631/jzus.A1100336

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  • DOI: https://doi.org/10.1631/jzus.A1100336

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